Sickle-guard-point shield.



J. W. OALTA.

SIGKLE GUARD POINT SHIELD.

APPLICATION FILED DEG. 5, 1912.

1,083,662, Patented Jan.6,1914.

COLUMBIA PLANOGRAPH C0,,WA5HINGTON. D. C.

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JAMES W. CALTA, 0F PLATTE, SOUTH DAKOTA.

SICKLE-GUARD-POINT SHIELD.

Application filed December 5, 1912.

To all whom it may concern Be it known that I, J AMES VJ. (hunt, acitizen of the United States, residing at Platte, in the county ofCharles Mix and State of South Dakota, have invented certain new anduseful Improvements in Sickle- Guard-Point Shields; and I do herebydeolare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to harvesting machines, and it more particularlyrelates to an attachment for sickle-guard-points.

An object of the invention is to provide an easily applicableattachment, whereby the points of sickle-guards may be shielded, forpreventing their engagement with corn stalks, stumps, etc.

Another object of the invention is to provide a device of this characterwhich may be applied to sickle-guards of different sizes and tapers.

Another object of the invention is to provide a sickle-point shieldwhich is formed from ordinary mercantile stock of steel tubing, so as toinsure the minimum cost of manufacture.

A still further object of the invention is to provide a device of thischaracter formed from somewhat resilient material so that the tonguesthereof will constitute clamping elements, whereby the shields will besecurely held in position on the guards.

WVith these objects in view, the invention consists in the improvedconstruction, arrangement and combination of parts of a device of thecharacter specified, which will be hereinafter fully described, andafterward specifically claimed.

In the accompanying drawings, which illustrate an approved embodiment ofmy invention, Figure 1 is a perspective view of an ordinary sickle-guardhaving my improved guard-point shield in position thereon. Fig. 2 is ahorizontal sectional view through the shield seated on a fragmental endportion of a sickle-guard. Fig. 3 is a side elevation view of one of theguard-point shields before being driven in place on thesickleguard-point, and, Fig. 4c is a vertical sectional view through aslightly modified form of my guard-point shield, in posit-ion on aguard-point.

Referring to these drawings, in which similar reference charactersdesignate cor- Specification of Letters Patent.

Patented Jan. 6, 1914.

Serial No. 735,083.

responding parts throughout the several views, a sickle-guard ofordinary construction is designated by the numeral 5, and on the pointor front end portion 6 of the guard is seated the shield 7 This shieldis formed from metal tubing, preferably steel, of a medium grade, sothat it is not only tough, but also possessed of some resiliency orelasticity. In the process of manufacture, the tubing is first cut intosuitable lengths and each length is then flattened at one end andtrimmed so as to present an arcuate front edge 8. The cylindricalportion 9 is then slitted at 10, so as to form any number of tongues 11.In the present instance, four tongues are employed, two of which areillustrated in Fig. 2, the other two being removed with the omittedsection; however,

,it is obvious that any number of tongues 11 may be formed, if desired.

It will be seen that when the point or front end portion 6 is forcedinto the shield, between the tongues 11, or the shield is driven ontothe point 6, the tongues will be spread apart at their free ends, so asto conform to the taper of the sickle-guard-point, while because of theresiliency of said tongues, they will bind or clamp the guard tightly,and securely hold the shield on the guard. When used on newguard-points, the rough surface of said guard-point and that of theinternal surface of the tongues will be sufficient to hold the shieldsin place by friction; but when the guards have been used for a while,and have therefore become polished at their points, it may becomenecessary to provide additional means for securing the shields in placeand may some times be necessary to roughen or abrade the exteriorsurface of the point, or the interior surfaces of the resilient tongue.

lVhile I do not limit myself to any specific means for holding theshields in place, I herewith illustrate, in Fig. 4, another meanswhereby the shield may be tightly held upon the point, in whichillustration a shield 7 having a lug 7 formed thereon, and while I haveshown this lug as being struck up or formed at the free end of one ofthe tongues, it should be understood that the invention is not dependentupon a lug so formed at the end of the tongue, as obviously, it could beformed on any other portion of any of the tongues. In applying thismodified form, the contiguous surface of a guardpoint has beenpreviously notched at 6, and

a file or other proper tool may be used for forming these notches, butin practice, the notches could more quickly and easily be made with acold-chisel and'hammer. It is obvious, that when a guard-point has beenthus fitted with one of my improved shields, the latter is permanentlysecured in place; and when all of the guards have been so shielded, theguards can no longer puncture and thus carry corn stubbles and stumpsthrough the grain which is being harvested, so as to deflectthe grainstraws out of the path of the sickle and prevent the harvesting of saidgrain straws. 7

It will be seen that I have provided a device of this character which isfully capable of attaining the foregoing objects, and in a thoroughlypractical and efficient manner.

I do not limit my invention to the exact details of construction,combination and arrangement of parts, as herewith illustrated anddescribed, but my invention may only be limited by a reasonableinterpretation of the claims.

I claim 1. A sickle-guard-point-shield comprising a hollow body having aforwardly extended fiat end portion, said hollow body being flaredrearwardly from the fiat portion and longitudinally slitted, formingresilient tongues whereby, when the guard is driven upon the point, saidtongues will clamp and fri'ctionally engage the point and hold the guardthereon.

2. A sickle-guard-point-shield comprising a hollow flared bodylongitudinally slitted forming resilient tongues which when the guard isdriven upon the point will clamp and frictionally engage said point,said guard having also a forward flat extension having an arcuateforward edge. V

In testimony whereof I havesigned my name to this specification in thepresence of two subscribing witnesses.

JAMES WV. CALTA. VVit-nesses: V

P. K. EXLEY. 7 JOHN BENDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

